Mass & Velocity
Weight & Velocity
Mass & Volume
Weight & Volume
A chemical reaction is complete in 2.3 seconds.
The solid has a mass of 23.4 grams
The density of aluminum is 2.70 g/cm3.
Salt deposits form from an evaporated liquid.
Centimeter and gram
Meter and gram
Centimeter and kilogram
Meter and kilogram
M, cm, mm, km.
Mm, m, cm, km
Km, mm, cm, m
Mm, cm, m, km
Milliliters to liters
Liters to milliliters
Volume to units of length
Length to units of volume
4.80 x 10-3 g/cm3
Include changes of state of a substance.
Include mass and color.
Can be observed when the identity of a substance changes.
Can be observed only when the identity of a substance can’t bealtered
Energy is absorbed
Energy is released
No energy change occurs
Either (a) or (b), depending on the reaction.
Water minus hydrogen yields oxygen
Hydrogen plus oxygen yields water.
Water minus oxygen creates hydrogen
Water can be separated into hydrogen and oxygen.
Ethanol plus carbon dioxide yields oxygen and water
Water plus carbon dioxide yields ethanol and oxygen
Carbon dioxide plus water yields ethanol plus oxygen.
Oxygen plus ethanol yields water and carbon dioxide